Home / 345,658.14-518,487.18-109,019.16

Finding the Fourth Proportional to 345,658.14, 518,487.18 and 109,019.16

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Solution

The fourth proportional to 345,658.14, 518,487.18 and 109,019.16 is: 163,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,658.14 : 518,487.18 = 109,019.16 : x
  2. Step 2: Convert to fraction form
    345,658.14/518,487.18 = 109,019.16/x
  3. Step 3: Cross multiply
    345,658.14x = 518,487.18 × 109,019.16
  4. Step 4: Simplify right side
    345,658.14x = 56,525,036,834.37
  5. Step 5: Solve for x
    x = 56,525,036,834.37/345,658.14
  6. Step 6: Final answer
    x = 163,528.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.